1995648 has 32 divisors (see below), whose sum is σ = 5301960. Its totient is φ = 665088.

The previous prime is 1995629. The next prime is 1995649. The reversal of 1995648 is 8465991.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1995648² = 7965221879808, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215 + ... + 2982.

2^1995648 is an apocalyptic number.

It is an amenable number.

1995648 is an abundant number, since it is smaller than the sum of its proper divisors (3306312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1995648 is an equidigital number, since it uses as much as digits as its factorization.

1995648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214 (or 5202 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 1995648 is about 1412.6740600719. The cubic root of 1995648 is about 125.9006523502.

The spelling of 1995648 in words is "one million, nine hundred ninety-five thousand, six hundred forty-eight".